AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the worldâs demand for smarter, cleaner â¦ better energy. Through its Windtec Solutions, AMSC provides wind turbine electronic controls and systems, designs and engineering services that reduce the cost of wind energy.
A tubular lock is a variation of a pin tumbler lock, where the pins are arranged in a circle facing the front of the lock and are operated by a tubular key. It was once referred to as an ACE lock, with ACE being a trademark of the Chicago Lock Company, but the generic term tubular lock is far more common these days.
When the notches in the discs align with the teeth on the pin, the lock can be opened. This lock is considered to be one of the least secure types of combination lock; many locks of this type can be quickly opened without knowledge of the correct combination.n 1978 a combination lock which could be set by the user to a sequence of his own choosing was invented by Andrew Elliot Rae. At this time the electronic keypad was invented and he was unable to get any manufacturers to back his mechanical lock for lockers, luggage, or brief-cases.